formbook | 4668453d0a5a11997010b4d6650209152cba73ef6e0c02c528f5260aef205a5f

General

Target

YBCNP6X9PSJDXqv.exe
Size

1.3MB
MD5

4dfab4ab0edef660557d063a7b787f32
SHA1

c55904a356c64da5812c07cdbc886fb64d80b2bb
SHA256

9ea19e6389c42486050f45551c33bf9d8f0b2417fc53975d97aebe477d368274
SHA512

94ca2be7e1ddd92abee498a1ccc44f7f79f14cab678faef4468000f2910b126aac2b4b423f050a78b2e03d1c7d19ec43908e49f6800b97dafe96de9d7a143489
SSDEEP

24576:c7XzodEMQ/3Q7+GOP0p2jQSM8eqIpQ916Ry/UE8izXOHtEga:cbzec3QCGd4jQB8LvocUdibOyga

Score

10^/10

formbook csn6 discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

csn6

Decoy

abmppo.club

a-great-dbt-cnsldtn-uk.fyi

intellidiets.com

giventt.com

mil-pay.com

endnotesg.xyz

balconygraze.xyz

cureply.online

musicmaster.digital

animevalhalla.com

nmtoinao.xyz

origotukau8.club

environmentalindustrial.com

loredanaprofumeria.com

marilynmarilynmarilyn.com

brodysinghhukpb.com

cangguavenue.com

themagicmoose.com

teamonston.com

cumthem.com

Signatures

Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook
Formbook family
formbook

Formbook payload 3 IoCs

rat

resource	yara_rule
behavioral1/memory/2740-11-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2740-15-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2992-20-0x0000000000080000-0x00000000000AF000-memory.dmp	formbook

Deletes itself 1 IoCs

pid	Process
1528	cmd.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2268 set thread context of 2740	2268	YBCNP6X9PSJDXqv.exe	30
PID 2740 set thread context of 1260	2740	YBCNP6X9PSJDXqv.exe	21
PID 2992 set thread context of 1260	2992	mstsc.exe	21

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	YBCNP6X9PSJDXqv.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	mstsc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 28 IoCs

pid	Process
2268	YBCNP6X9PSJDXqv.exe
2268	YBCNP6X9PSJDXqv.exe
2268	YBCNP6X9PSJDXqv.exe
2268	YBCNP6X9PSJDXqv.exe
2268	YBCNP6X9PSJDXqv.exe
2268	YBCNP6X9PSJDXqv.exe
2740	YBCNP6X9PSJDXqv.exe
2740	YBCNP6X9PSJDXqv.exe
2992	mstsc.exe
2992	mstsc.exe
2992	mstsc.exe
2992	mstsc.exe
2992	mstsc.exe
2992	mstsc.exe
2992	mstsc.exe
2992	mstsc.exe
2992	mstsc.exe
2992	mstsc.exe
2992	mstsc.exe
2992	mstsc.exe
2992	mstsc.exe
2992	mstsc.exe
2992	mstsc.exe
2992	mstsc.exe
2992	mstsc.exe
2992	mstsc.exe
2992	mstsc.exe
2992	mstsc.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
2740	YBCNP6X9PSJDXqv.exe
2740	YBCNP6X9PSJDXqv.exe
2740	YBCNP6X9PSJDXqv.exe
2992	mstsc.exe
2992	mstsc.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2268	YBCNP6X9PSJDXqv.exe
Token: SeDebugPrivilege	2740	YBCNP6X9PSJDXqv.exe
Token: SeDebugPrivilege	2992	mstsc.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2268 wrote to memory of 2740	2268	YBCNP6X9PSJDXqv.exe	30
PID 2268 wrote to memory of 2740	2268	YBCNP6X9PSJDXqv.exe	30
PID 2268 wrote to memory of 2740	2268	YBCNP6X9PSJDXqv.exe	30
PID 2268 wrote to memory of 2740	2268	YBCNP6X9PSJDXqv.exe	30
PID 2268 wrote to memory of 2740	2268	YBCNP6X9PSJDXqv.exe	30
PID 2268 wrote to memory of 2740	2268	YBCNP6X9PSJDXqv.exe	30
PID 2268 wrote to memory of 2740	2268	YBCNP6X9PSJDXqv.exe	30
PID 1260 wrote to memory of 2992	1260	Explorer.EXE	31
PID 1260 wrote to memory of 2992	1260	Explorer.EXE	31
PID 1260 wrote to memory of 2992	1260	Explorer.EXE	31
PID 1260 wrote to memory of 2992	1260	Explorer.EXE	31
PID 2992 wrote to memory of 1528	2992	mstsc.exe	32
PID 2992 wrote to memory of 1528	2992	mstsc.exe	32
PID 2992 wrote to memory of 1528	2992	mstsc.exe	32
PID 2992 wrote to memory of 1528	2992	mstsc.exe	32

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1260
- C:\Users\Admin\AppData\Local\Temp\YBCNP6X9PSJDXqv.exe
  "C:\Users\Admin\AppData\Local\Temp\YBCNP6X9PSJDXqv.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2268
- - C:\Users\Admin\AppData\Local\Temp\YBCNP6X9PSJDXqv.exe
    "C:\Users\Admin\AppData\Local\Temp\YBCNP6X9PSJDXqv.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2740
- C:\Windows\SysWOW64\mstsc.exe
  "C:\Windows\SysWOW64\mstsc.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2992
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\YBCNP6X9PSJDXqv.exe"
    3⤵
    - Deletes itself
    - System Location Discovery: System Language Discovery
    PID:1528

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1260-21-0x0000000006670000-0x0000000006785000-memory.dmp

Filesize
1.1MB

Download
memory/1260-17-0x0000000006670000-0x0000000006785000-memory.dmp

Filesize
1.1MB

Download
memory/2268-0-0x000000007483E000-0x000000007483F000-memory.dmp

Filesize
4KB

Download
memory/2268-1-0x0000000000B50000-0x0000000000C98000-memory.dmp

Filesize
1.3MB

Download
memory/2268-2-0x0000000074830000-0x0000000074F1E000-memory.dmp

Filesize
6.9MB

Download
memory/2268-3-0x00000000004B0000-0x00000000004C0000-memory.dmp

Filesize
64KB

Download
memory/2268-4-0x000000007483E000-0x000000007483F000-memory.dmp

Filesize
4KB

Download
memory/2268-5-0x0000000074830000-0x0000000074F1E000-memory.dmp

Filesize
6.9MB

Download
memory/2268-6-0x00000000081F0000-0x0000000008314000-memory.dmp

Filesize
1.1MB

Download
memory/2268-12-0x0000000074830000-0x0000000074F1E000-memory.dmp

Filesize
6.9MB

Download
memory/2740-8-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2740-9-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2740-13-0x0000000000CA0000-0x0000000000FA3000-memory.dmp

Filesize
3.0MB

Download
memory/2740-7-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2740-16-0x0000000000110000-0x0000000000124000-memory.dmp

Filesize
80KB

Download
memory/2740-15-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2740-11-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2992-18-0x0000000000B80000-0x0000000000C84000-memory.dmp

Filesize
1.0MB

Download
memory/2992-19-0x0000000000B80000-0x0000000000C84000-memory.dmp

Filesize
1.0MB

Download
memory/2992-20-0x0000000000080000-0x00000000000AF000-memory.dmp

Filesize
188KB

Download

Analysis

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